So, I learnt something today from a kid in Year 3. He gave a perfect explanation of a column addition that made me stop and think. How would you explain this?
“4 plus 1 is 5, so put a 5 in the ones column. Then twenty plus ninety is one hundred and ten, so we put a 1 in the hundreds column and a 1 in the tens column. Then one hundred plus three hundred is four hundred so put a 4 in the hundreds column”
This has got me thinking about where else I can reinforce place value when discussing procedures.